Would you like to know how to drill into concrete efficiently? If you want it done the right way, you need to have the right tools. Now, a lot of people will tell you that you can get it done by using your ordinary drill.
Well, they are wrong. There is a difference between normal drilling and efficient drilling. For the sake of this article, I going to assume you already own a drilling machine.
Drilling into the wood, masonry, plastic and other similar stuff, you can get away with your regular drill. But, when it comes to concrete, you will either break your drill bit or damage your machine.
Let’s get straight to the point. Drilling through thick concrete is not a job for your regular drill driver. You need a Rotary Hammer Drill to do it. If you think it’s an overkill for the DIY purpose, then go for a Hammer Drill.
Here is the step by step process of drilling into concrete efficiently:
Get A Hammer Drill / Rotary Hammer Drill & Bits
You might be thinking that these are some really expensive piece of equipment. But, they have come down in price in recent times. You can get the corded ones if you like. They are certainly much cheaper than the cordless ones.
They are certainly affordable, and you get a hammer drill and regular drill in one equipment. You can have a look at our list of top hammer drills for your next purchase.
We have already written an article on the topic How to Use Hammer Drill on Concrete – A step by step process. Check out this.
Why Rotary Hammer Drills?
For larger jobs, a regular hammer drill won’t cut it. You need to get a powerful version of the hammer drill aka rotary hammer drill. If it’s a one-time job, you don’t need to buy one. You can rent one at a very cheap rate.
A lot of people try to drill into concrete using a regular rotary drill and masonry bits only to end up burning the motor or breaking the bits in the process.
What hammer drill does is that first, it breaks the material and the rotation of the bits drills into that broken section. Speeds up the process by a lot. Any old drill can’t do that with this much efficiency.
Make sure you get your hammer drill bit set. They usually come in different shapes and sizes, if you get them in a set. That’s much cheaper than buying a single piece drill bit.
Check out the Guide about the basic difference between Hammer Drill VS Rotary Hammer Drill
– It’s better to get a powerful drill if you are planning to use it for drilling lots of holes.
– When you are putting your metal drill bit in, make sure it goes all the way to the back of the chuck and tighten the chuck up properly.
Wear Protective Gears
These tools make a lot of noise. And, if you are drilling into concrete make sure you wear eye protection. I don’t think I need to elaborate why you need proper safety gears.
Here is a list of safety gears:
– Safety Goggles / Full Head Mask
– Ear Protection.
Start With A Pilot Hole
Mark your drilling spot using a pencil and then make a pilot hole. What I mean by a pilot hole is that start by using a tiny drill bit with “drill only” mode and mark your spot on the concrete. It’s for precision drilling. Almost all the hammer drills have the rotary drill mode only option. Also, use a vacuum to suck up all the debris.
When you are done, switch it over to hammer drill setting and start drilling. It’s very important to start with a pilot hole if you are drilling into tile or marble floors.
– As the saying goes “Measure twice cut once”, double check your marked location. You don’t want to make too many holes side by side or one over the other.
– You should measure how deep you want to drill. For that, I would recommend using a depth gauge. Most of the time, you don’t need to buy one separately. You’ll probably get one with your tool.
Keep Proper Drilling Posture
Holes marked, equipment checked, bits ready. Now it’s to drill. Keep your feet firmly on the ground and maintain a steady position. Keep your shoulder width apart. Hold the drill with both hands. Make sure you have a firm grip on your tool.
Just like holding a gun. Keep one hand on the trigger and the other on the supporting grip. If you are worried about the recoil, don’t be. If it’s a high-powered motor, then be prepared for some kickbacks.
Maintain a perpendicular position of your drill tool. Don’t force the drill. Let it do the work for you. Keep a gentle pace. Also, if you are drilling into thick concrete, expect some unexpected resistance. It’s because of the stone and pebbles inside the concrete.
– Apply sufficient amount pressure to keep the drill in place. You don’t need to force it forward.
– When you are drilling larger holes, it’s better to pull the drill back out once in a while. For example, bring it back every ten or fifteen seconds. It keeps the dust out of the hole.
– If you get stuck on a hard piece of concrete, use a hammer and a masonry nail to pound that surface. Break up the concrete by hand and resume your drilling. Don’t force your drill.
When you are done drilling, use canned air to blow out the dust. It increases the strength of the concrete anchors. Compressed air is perfect for this. Makes sure you keep your goggles on when doing this. It will protect you from the dust and debris.
In short, you should never use a regular drill to drill into concrete. Always use a hammer drill and wear proper safety gears.
If you are drilling into a wall, make sure you get a stud tester. Always check for wires before drilling holes into concrete walls.
Hope you now know how to drill into concrete the right way. And, that’s the end of this article.